All in all, we spent hundreds of hours combing through thousands of user reviews to put together a comprehensive list of the best seaweed extract liquid on the market. We then delved into these seaweed extract liquid further and put together detailed reviews so that you can easily pick the best seaweed extract liquid for your needs.
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Best seaweed extract liquid reviews
1. Organic Liquid Seaweed and Kelp Fertilizer Supplement by Bloom City, Quart (32 oz) Concentrated Makes180 Gallons
Feature
FULLY ORGANIC SEAWEED AND KELP: A seven species blend of Ascophyllum Nodosum, Palmaria Palmata, Ecklonia Maxima, Laminaria Saccharina, Chlorella Vulgaris, Arthrospira Platensis, and Chondrus Crispus.EXTRACTED TO PROTECT NATURAL ENZYMES: Clean Kelps unique processing techniques give the cleanest possible kelp extract. Get all the benefits of natural kelp enzymes and hormones without the non-nutritious fibrous pulp that gives other kelps their thick, brackish appearance. You can see the difference.
SIMPLE AND SAFE TO USE FOR ALL PLANTS: Add to every watering, its that easy. No risk of over application, plants love kelp. Clean Kelp aids in every stage of growth for root and stem health.
FOR BOTH PLANTS AND LAWNS: Add Clean Kelp to all of your houseplants, vegetable garden, and your lawn for healthy green plants.
FORMULATED AND MADE IN THE USA: Designed by botanists and plant chemists. Bloom City chooses only the highest quality ingredient sources and manufacturing methods to create the worlds best craft growing nutrient systems
2. Liquid Seaweed for Plants (32 oz) Quart | Concentrated Liquid Kelp Supplement from Blue Planet Nutrients | Hydroponic Aeroponic Soil Coco Coir | for All Plants & Gardens
Feature
Derived from Ascophyllum Nodosum. This all-natural 100% organic supplement works well in any garden and is a great way to boost overall plant vitalityLiquid Seaweed can help mother plants produce more successful clones, stimulate growth, and even help produce more fragrant flowers & sweeter fruits
Designed for use in all hydroponic systems, aeroponics, coco-coir, all soil-less mediums such as vermiculite, perlite, and in soil
High-grade formula with results you can see!
Proven results across the internet! See why everyone is raving about Blue Planet Nutrients!
3. Maxicrop Liquid Seaweed (Kelp Extract, 32 Oz
Feature
Pure seaweed extracts initiate cell growth and vigorous root and stem growthTrace elements that Maxi crop Liquid Seaweed contains are important as activators of enzyme systems
Maxi Crop's basic is a pure 100% seaweed extract
4. Marine Magic Dry Soluble 100% Organic Seaweed Extract Garden Fertilizer Makes 128 Gallons (484 L) Kelp Liquid Solution
Feature
Improves seed germination and increases root developmentPromotes bloom set, new buds and size of flowers and fruit
Extends shelf life of fruits, vegetables and flowers
Increases plant vigor and strength to combat extreme weather
No chemicals, safe for the environment
5. Umi no Shizuku Fucoidan Drink Type Pure Seaweed Extract Enhanced with Agaricus Mushroom Vitamin Complex Optimized Immune Support Health Supplement-30 Liquid Bottles (50ML/Bottle)
6. NatureMedic Fucoidan Powered with AHCC Brown Seaweed Immunity Supplement with High Purity Organic Mekabu Mozuku Agaricus 50 Concentrated Liquid Extract Packets Made in Japan (1 Box)
Feature
FUCOIDAN POWERED WITH AHCC - The only Fucoidan formulation containing AHCC (active hexose correlated compound) in the world! AHCC is Japan's top-selling immune support ingredient. AHCC is a unique, cultured mushroom mycelia extract rich in alpha glucans that promotes optimal T-cell and natural killer cell activity.HIGH PURITY & QUANTITY FUCOIDAN - For increased efficacy, NatureMedic utilizes Japanese Mozuku from Okinawa and certified organic Mekabu from Australia, both at approximate 85% purity. Each set contains 65 grams of Fucoidan which is higher than any other brand and is also reinforced with a great range of vitamins (A, C, E, D, B2, B6, B9 & B12).
AGARICUS BLAZEI MURILL MYCELIUM EXTRACT - NatureMedic's Agaricus blazei is safely and cleanly cultured from the best Agaricus mushrooms in Japan and is known to contain high levels of beta-glucans. Beta-glucans have shown the ability to stimulate immune cells in our body such as macrophages and NK cells.
SAFTEY & QUALITY - NatureMedic sources only the highest quality Mozuku Fucoidan from Okinawa, Japan and USDA organic certified Australian Mekabu. Strict import inspections ensure NatureMedic Fucoidan is safe from radiation and heavy metals. In addition, we regularly conduct separate quality inspections for the final products at SGS, which is the world's top quality assurance company.
MANUFACTURED UNDER GLOBAL STANDARDS - In accordance to the standards of Japan's Ministry of Health and Welfare and the Food and Drug Administration (FDA) of USA (cGMP), NatureMedic's Fucoidan powered with AHCC is manufactured by one of the best pharmaceutical factories in Japan. The factory is ceritifed by GMP and NSF as it has HACCP and JAS Organic certification.
7. Kelp-tivate Liquid Seaweed Concentrate, Super Plant Food, 8oz.
Feature
High Concentrate Kelp Plant Food Boost100% Soluble Kelp
Big Blooms + More Produce
Compare NPKs: High % "K" 0-0-2 Potassium
Ideal for foliar spray
8. SeaFeed New Zealand Liquid Seaweed Fertilizer 33.8oz Liquid Plant Food for Indoor Plants Vegetables Trees and Lawns | Liquid Lawn Fertilizer
Feature
Premium Quality SeaFeed is MADE IN NEW ZEALAND from freshly harvested seaweed.SeaFeed is completely natural and contains only seaweed extract
SeaFeed Liquid seaweed fertilizer is pet friendly and won't damage flowers
SeaFeed is sustainably sourced from seaweed gathered during the harvesting of farmed mussels
At SeaFeed we aim to double offset our carbon footprint
9. Sea Magic Dry Soluble Seaweed Extract Fertilizer, Makes 66 Gallons
Feature
Makes 66 US gallons or 250 Liters1 Ounce Package (30 grams)
Completely Soluble Seaweed Fertilizer
Works with any current fertilizer program
Use in your home garden on all flowers, vegetables, tomatoes, strawberries, fruit trees and shrubs, lawn, seedlings and houseplants.
10. Liquid Seaweed Kelp Fertilizer by Ocean Harvest | Organic Fertilizer from Seaweed Extract for Plants | Organic Fertilizer for Vegetables | Liquid Kelp is a Liquid Fertilizer for Indoor Plants
Feature
Ocean Harvest fish hydrolysate and Organic Kelp is an all organic protein fertilizer, made utilizing naturally occurring enzymes present in fresh North Atlantic fish and Seaweed harvested from the North Atlantic waters of Nova Scotia, CanadaOur cold-process protects the vitamins, amino acids, enzymes, and growth hormones that create larger flower blooms, tastier fruits and vegetables
OMRI listed Organic; 100% organic, so it won't burn plants or roots or pollute the environment
Promotes the growth of beneficial bacteria, making the soil less compact and working as a compost builder
Blooms are more plentiful and longer lasting on flowering plants
